CN204966232U - Energy -efficient type metallic glass power transformer - Google Patents
Energy -efficient type metallic glass power transformer Download PDFInfo
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- CN204966232U CN204966232U CN201520777285.XU CN201520777285U CN204966232U CN 204966232 U CN204966232 U CN 204966232U CN 201520777285 U CN201520777285 U CN 201520777285U CN 204966232 U CN204966232 U CN 204966232U
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Abstract
The utility model relates to an energy -efficient type metallic glass power transformer, including totally enclosed ripple struction oil tank and transformer ware body, be equipped with the buckled plate in the oil tank outside, be equipped with the case lid at the oil tank top, transformer oil is equipped with inside the oil tank, the submergence of transformer ware body is in transformer oil, transformer ware body is including assembly high -pressure coil, low voltage coil and iron core together, transformer ware body structure adopts the frame iron core mounting of fixed iron core and guarantees that the bearing structure of the stability of coil under short -circuit fault constitutes, case lid upper portion is through high -tension bushing and the low pressure sleeve pipe is equipped with the high tension lead respectively and low pressure goes between, still is equipped with transformer oil detector and reserve sleeve pipe on the case lid, the lower part of oil tank is equipped with the vacuum device of changing oil, still is equipped with grounded bolt on the oil tank. This transformer overall structure design benefit has technology advanced person, novel structure, appearance characteristics such as pleasing to the eye to reach characteristics such as low -loss, low noise, anti burst short circuit ability reinforce.
Description
Technical field
The utility model relates to a kind of distribution transformer, specifically a kind of energy-efficient non-crystalline alloy power transformer.
Background technology
Transformer is power equipment important in electrical network, the electric energy loss of power transformer accounts for 30 ~ 60% of electrical power trans mission/distribution system electric energy loss, wherein no-load loss accounts for 50 ~ 80% of total losses of transformer, and therefore, promoting the power transformer of high-efficiency and energy-saving type is the energy-conservation important channel of electrical network.Adopt iron core of transformer material to carry out transformer device structure optimal design, the novel electric power transformer that development performance characteristics is excellent is the important channel reducing power transformer energy consumption.The core material of non-crystalline alloy power transformer adopts non-crystaline amorphous metal to replace the silicon steel sheet of traditional power transformer, and its no-load loss can reduce by 70 ~ 80%, is specially adapted to the occasion that the distribution transforming such as rural power grids and developing region utilance is lower.But, because amorphous alloy strips is very thin, frangible and can not the characteristic such as pressurized, in addition the production technology of current domestic non-crystalline alloy power transformer is uneven, the unreasonable structure of the non-crystalline alloy power transformer produced, causes that it in use exists impairment poor-performing, noise is large, electric property is unstable, contaminated environment and the problem such as useful life is short.In view of the technical problem existing for existing non-crystalline alloy power transformer, therefore, a kind of novel non-crystalline alloy power transformer of exigence solves above-mentioned technical problem.
Summary of the invention
The purpose of this utility model is to provide a kind of high-efficiency and energy-saving type non-crystalline alloy power transformer, this transformer whole smart structural design, no-load loss is low, energy-efficient, transformer tank adopts all-sealed structure, makes user can obtain non-maintaining or reduced-maintenance benefit.
To achieve these goals, the technical solution adopted in the utility model is, a kind of high-efficiency and energy-saving type non-crystalline alloy power transformer, comprise hermetically sealed ripple struction fuel tank and transformer body, corrugated plating is provided with in fuel tank outside, case lid is provided with at top of oil-tank, at fuel tank internal, transformer oil is housed, transformer oil and air are completely isolated, the Swelling and contraction of corrugated plating is relied on to ensure the change in volume of transformer oil in operation during use, delay the ager process of transformer oil, reduce user to the maintenance times of transformer.Described transformer body is immersed in transformer oil, described transformer body comprises the high-tension coil be assembled together, low-voltage coil and iron core, described structure of transformer body adopts the frame iron core fixture of secured core and ensures the supporting construction composition of the stability of coil under short trouble, described iron core is the three-phase five-limb structure be merged into by four frames that amorphous alloy strips rolls, iron core adopts frame iron core fixture to be fixed support, described low-voltage coil be wound on can its mechanical strength of self-sustaining high strength insulating cylinder on, described high-tension coil directly overlaps around on low-voltage coil, described low-voltage coil and high-tension coil be assemblied in be arranged on iron core column surrounding coil support device on and be fixed, during minimizing transformer short-circuit, radial direction inside contracting or extending out, iron core is not stressed, effectively ensure the magnetic property of iron core and the anti-short circuit capability of transformer.The upper and lower side of described coil is provided with iron yoke, is provided with crimped paper as layer insulation between low-voltage coil and high-tension coil, the anti-short circuit capability between intensifier coil.High-voltage connection and low-voltage lead are equipped with respectively through bushing and low-tension bushing in described case lid top, case lid is also provided with transformer oil detector and sleeve pipe for subsequent use, high-low pressure sleeve pipe and sleeve pipe for subsequent use are all equipped with three anti-covers, for rainproof, dust-proof and anti-hail, case lid is the top being contained in fuel tank by bolt, nut and sealing offset plate, the bottom of described fuel tank is provided with vacuum oil changing device, fuel tank adopts vacuum to change oil, the bubble in coil can be got rid of completely, guarantee stable insulation, in order to safety, fuel tank is also provided with earth stud.
Improve as one of the present utility model, described iron core adopts 2605SA1 amorphous alloy strips to shear rear mold molded package through the special cutter of amorphous alloy strips and forms, adopt the special cutter of amorphous alloy strips to carry out shearing manipulation and can ensure band material impulse-free robustness, seam marshalling, band carries out forming processes in outer mold after having sheared in iron core, to ensure housing size conforms drawing requirement in iron core, and by processing performance requirement, with annealing furnace, annealing heat treatment is carried out to iron core, to eliminate its stress to obtain excellent low loss characteristic, adopt epoxy resin to brush iron core surface simultaneously, then enter continuous tunnel furnace to dry.The rectangular in cross-section of described iron core, and be provided with rubber damper at the sealing part of iron core, to reduce the transformer operationally oscillation intensity that produces because orientation is stretched of iron core.Described low-voltage coil adopts the multilayer concentric rectangular configuration of Copper Foil coiling, described high-tension coil adopts the rectangle layered structure of acetal paint copper-clad wire coiling, what can increase transformer bears short-circuit capacity, described low-voltage coil and high-tension coil are provided with axial cooling oil duct, greatly reduce the temperature rise of coil.Because the saturation magnetic induction of amorphous alloy material is lower, usually choose 1.3 ~ 1.35T magnetic flux density and just can obtain good no-load loss value.The saturation flux density of the 2605SA1 amorphous alloy strips that this power transformer adopts is 1.57T, and lamination coefficient is 0.84.
Improve as one of the present utility model, the connection set of described transformer body is Dyn11, and high order harmonic component can be avoided to affect, and resistance to unbalanced loading capability is strong, thus significantly improves for electrical stability.
Improve as one of the present utility model, transformer oil adopts 25# insulating oil, and its physicochemical property is more stable, and ageing resistance is good, modest viscosity, and while not affecting transformer body heat radiation, oil flash is higher, and can be antirust.
Relative to prior art, advantage of the present utility model is as follows, 1) overall construction design is ingenious, has the features such as technique advanced person, novel structure, good looking appearance, and the feature such as low-loss, low noise, anti-sudden short circuit ability be strong; 2) no-load loss of this power transformer declines 5% ~ 25% than existing national standards GB/T6451, on average reduces by 10.25%, and no-load current reduces by 37.9%, and operating cost on average declines 18.9%; 3) fuel tank of this power transformer adopts hermetically sealed ripple struction, fuel tank and case lid adopt Bolt Connection, fuel tank and case are along being welded, transformer oil does not contact with air, prevents and slows down deterioration and the humidified insulation of oil, strengthen operational reliability, normal operation is non-maintaining, and adopt vacuum to change oil, the bubble in coil can be got rid of completely, guarantee stable insulation; 4) this power transformer tank adopts corrugated plate dst radiator, and when oil temperature changes, ripple expands with heat and contract with cold and can replace the effect of oil conservator, corrugated plate dst fuel tank good looking appearance, and floor space is little; 5) the annealed process of the iron core of this power transformer, there is good low loss characteristic, iron core is fixed on frame iron core fixture, and high-voltage coil and low-voltage coil is fixed on independent coil support device, not using iron core as main load-bearing structural member, iron core is not stressed, strengthen its magnetic conductivity, reduce no-load loss, during reduction transformer short-circuit, radial direction inside contracting or extending out, improve the anti-short circuit capability of transformer, also reduce noise simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is vertical view of the present utility model.
Fig. 3 is the assembling schematic diagram of iron core of the present utility model and coil.
In figure: 1-fuel tank, 2-corrugated plating, 3-case lid, 4-transformer oil, 5-bushing, 6-low-tension bushing, 7-high-voltage connection, 8-low-voltage lead, 9-transformer oil detector, 10-sleeve pipe for subsequent use, 11-hanger, 12-vacuum oil changing device, 13-earth stud, 14-iron core, 15-coil, 16-rubber damper.
Embodiment
In order to deepen understanding and cognition of the present utility model, below in conjunction with accompanying drawing the utility model be further described and introduce.
As Figure 1-3, a kind of high-efficiency and energy-saving type non-crystalline alloy power transformer, comprise hermetically sealed ripple struction fuel tank 1 and transformer body, be provided with corrugated plating 2 in the outside surrounding of fuel tank 1, be provided with case lid 3 at top of oil-tank, at fuel tank internal, transformer oil 4 is housed, transformer oil 4 is completely isolated with air, rely on the Swelling and contraction of corrugated plating 2 to ensure the change in volume of transformer oil 4 in operation during use, delay the ager process of transformer oil, reduce user to the maintenance times of transformer.Described transformer body is immersed in transformer oil 4, described transformer body comprises the high-tension coil be assembled together, low-voltage coil and iron core 14, described structure of transformer body adopts the frame iron core fixture of secured core 14 and ensures the supporting construction composition of the stability of coil 15 under short trouble, the three-phase five-limb structure be merged into by four frames that described iron core 14 rolls for amorphous alloy strips, iron core adopts frame iron core fixture to be fixed support, described low-voltage coil be wound on can its mechanical strength of self-sustaining high strength insulating cylinder on, described high-tension coil directly overlaps around on low-voltage coil, described low-voltage coil and high-tension coil be assemblied in be arranged on iron core column surrounding coil support device on and be fixed, during minimizing transformer short-circuit, radial direction inside contracting or extending out, iron core 14 is not stressed, effectively ensure the magnetic property of iron core 14 and the anti-short circuit capability of transformer.The upper and lower side of described coil 15 is provided with iron yoke, when iron core and coil assemble, should ensure that iron core is concentric with coil, and the iron yoke main of upper and lower side should be positioned at same plane, crimped paper is provided with as layer insulation, the anti-short circuit capability between intensifier coil between low-voltage coil and high-tension coil.High-voltage connection 7 and low-voltage lead 8 are equipped with respectively through bushing 5 and low-tension bushing 6 in described case lid 3 top, case lid 3 is also provided with transformer oil detector 9 and sleeve pipe for subsequent use 10, transformer oil detector can monitor oil level, oil temperature and oil flash automatically, and there is prompt functions, high-low pressure sleeve pipe and sleeve pipe for subsequent use are all equipped with three anti-covers, for rainproof, dust-proof and anti-hail.Case lid 3 is the tops being contained in fuel tank 1 by bolt, nut and sealing offset plate, in order to ensure result of use and easy to maintenance, in the surrounding corner of case lid 3, hanger 11 is installed, shunting switch is provided with in the side of low-tension bushing 6, sleeve pipe place is provided with indicates that mutually number (A, B, C, a, b, c, word board o), to distinguish high-low pressure binding post for transformer.The bottom of described fuel tank 1 is provided with vacuum oil changing device 12, and fuel tank adopts vacuum to change oil, and can get rid of the bubble in coil completely, guarantee stable insulation, in order to safety, fuel tank 1 also be provided with earth stud 13.Nameplate is equipped with the corrugated plating 2 of the positive side of fuel tank through screw, for indicating title and electric parameter.The ingenious practicality of whole Technical Design, greatly reduces the no-load loss of power transformer, efficient energy-saving and environmental protection.
Described iron core 14 adopts 2605SA1 amorphous alloy strips to shear rear mold molded package through the special cutter of amorphous alloy strips and forms, adopt the special cutter of amorphous alloy strips to carry out shearing manipulation and can ensure band material impulse-free robustness, seam marshalling, band carries out forming processes in outer mold after having sheared in iron core, to ensure housing size conforms drawing requirement in iron core, and by processing performance requirement, with annealing furnace, annealing heat treatment is carried out to iron core, to eliminate its stress to obtain excellent low loss characteristic, adopt epoxy resin to brush iron core surface simultaneously, then enter continuous tunnel furnace to dry.The rectangular in cross-section of described iron core 14, and be provided with the thick rubber damper of 10mm at the sealing part of iron core, to reduce the transformer operationally oscillation intensity that produces because orientation is stretched of iron core.Because the saturation magnetic induction of amorphous alloy material is lower, usually choose 1.3 ~ 1.35T magnetic flux density and just can obtain good no-load loss value.The saturation flux density of the 2605SA1 amorphous alloy strips that this power transformer adopts is 1.57T, and lamination coefficient is 0.84.
Described low-voltage coil adopts the multilayer concentric rectangular configuration of Copper Foil coiling, described high-tension coil adopts the rectangle layered structure of acetal paint copper-clad wire coiling, what can increase transformer bears short-circuit capacity, described low-voltage coil and high-tension coil are provided with axial cooling oil duct, greatly reduce the temperature rise of coil.
The connection set of described transformer body is Dyn11, and high order harmonic component can be avoided to affect, and resistance to unbalanced loading capability is strong, thus significantly improves for electrical stability.
Transformer oil 4 adopts 25# insulating oil, and its physicochemical property is more stable, and ageing resistance is good, modest viscosity, and while not affecting transformer body heat radiation, oil flash is higher, and can be antirust.
Non-crystaline amorphous metal makes the transformer of iron core, the manufacture of amorphous alloy material adopts advanced flash set technology, energy efficient about 80% in the fabrication process, and manufacture process non-pollution discharge, achieve green manufacturing, there is good environmental benefit, few to airborne release greenhouse gas, greatly reduce the direct pollution to environment, efficient energy-saving and environmental protection.Transformer oil in oil tank of transformer has insulation, heat radiation and extinguishing arc effect, the heat produced when transformer runs makes to rise near the oily expanded by heating of iron core and coil, by the convection current up and down of oil, heat is shed by radiator, ensures that transformer normally runs.
Be above-described embodiment, be not used for limiting protection range of the present utility model, equivalents done on the basis of technique scheme or substitute the scope all falling into the utility model claim and protect.In the claims, word " comprises " and does not get rid of existence and do not arrange element in the claims.
Claims (5)
1. a high-efficiency and energy-saving type non-crystalline alloy power transformer, it is characterized in that: comprise hermetically sealed ripple struction fuel tank and transformer body, be provided with corrugated plating in fuel tank outside, be provided with case lid at top of oil-tank, at fuel tank internal, transformer oil is housed, described transformer body is immersed in transformer oil, described transformer body comprises the high-tension coil be assembled together, low-voltage coil and iron core, described iron core is the three-phase five-limb structure be merged into by four frames that amorphous alloy strips rolls, iron core adopts frame iron core fixture to be fixed support, described low-voltage coil is wound on insulating cylinder, described high-tension coil directly overlaps around on low-voltage coil, crimped paper is provided with between low-voltage coil and high-tension coil, described low-voltage coil and high-tension coil be assemblied in be arranged on iron core column surrounding coil support device on and be fixed, high-voltage connection and low-voltage lead are equipped with respectively through bushing and low-tension bushing in described case lid top, case lid is also provided with transformer oil detector and sleeve pipe for subsequent use, the bottom of described fuel tank is provided with vacuum oil changing device, fuel tank is also provided with earth stud.
2. high-efficiency and energy-saving type non-crystalline alloy power transformer as claimed in claim 1, it is characterized in that, described iron core adopts 2605SA1 amorphous alloy strips to shear rear mold molded package through the special cutter of amorphous alloy strips and forms, the rectangular in cross-section of iron core, and be provided with the thick rubber damper of 10mm at the sealing part of iron core.
3. high-efficiency and energy-saving type non-crystalline alloy power transformer as claimed in claim 1, it is characterized in that, described low-voltage coil adopts the multilayer concentric rectangular configuration of Copper Foil coiling, described high-tension coil adopts the rectangle layered structure of acetal paint copper-clad wire coiling, and described low-voltage coil and high-tension coil are provided with axial cooling oil duct.
4. high-efficiency and energy-saving type non-crystalline alloy power transformer as claimed in claim 1, it is characterized in that, the connection set of described transformer body is Dyn11.
5. high-efficiency and energy-saving type non-crystalline alloy power transformer as claimed in claim 1, is characterized in that, described transformer oil adopts 25# insulating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777285.XU CN204966232U (en) | 2015-10-09 | 2015-10-09 | Energy -efficient type metallic glass power transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777285.XU CN204966232U (en) | 2015-10-09 | 2015-10-09 | Energy -efficient type metallic glass power transformer |
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| Publication Number | Publication Date |
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| CN204966232U true CN204966232U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520777285.XU Expired - Fee Related CN204966232U (en) | 2015-10-09 | 2015-10-09 | Energy -efficient type metallic glass power transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702424A (en) * | 2016-04-21 | 2016-06-22 | 佛山市中研非晶科技股份有限公司 | Amorphous-alloy oil-immersed transformer capable of noise reduction and short-circuit resistance and fabrication method of amorphous-alloy oil-immersed transformer |
-
2015
- 2015-10-09 CN CN201520777285.XU patent/CN204966232U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702424A (en) * | 2016-04-21 | 2016-06-22 | 佛山市中研非晶科技股份有限公司 | Amorphous-alloy oil-immersed transformer capable of noise reduction and short-circuit resistance and fabrication method of amorphous-alloy oil-immersed transformer |
| CN105702424B (en) * | 2016-04-21 | 2018-10-19 | 佛山市中研非晶科技股份有限公司 | A kind of amorphous alloy oil immersion type transformer and preparation method thereof of noise reduction and resistance to shorting |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20201009 |